Bulkhead-door



0. STUART.

BULKHEAD DOOR.

APPLICATION FILED MAY 26, 1921.

- Patented Nov.

Orsi lll Sfuarl OFFICE.

OBSINI STUART, 0F LIVERPOOL, ENGLAND.

BULKHEAD-DOOR.

' Application filed May 26,

To all whom it may concern Be it known that I, ORsINI STUART, a subject of the King of Great Britain, residing at Liverpool, 'inthe county of Lancaster and Kingdom of England, have invented certain new and useful Improvements in Bulkhead- Doors, (for which I have filed an application in England March 8, 1920, Ser. No. 6963,) of which the following is a specification.

This invention is an improvement in or modification of the invention set forth in specificationSerial No. 241903 andhas reference to doors applicable for smoke boxes and for closing the openings or ways through bulkheads, partitions, walls and the like where it is desired to make a practically air tight or fluid tight or fireproof door which can be readily opened and closed.

The invention will be understood from the following description, reference being had to theaccompanying drawings in which Figure 1 is a front elevation of a bulkhead door constructed according to my invention, and so arranged as to avoid any upstanding projection in the floor at. the sill of the doorway.

Fig. 2 is a vertical cross section on the line E F of Fig. 1.

Fig. 3 is .a vertical cross section on the line J K of Fig. 1.

I Fig. 4 a horizontal section at A D of Fig. v5 is a view similar to Fig. 2but showing a modification.

Referringfirstto Figs. 1' to 4 of the accompanying drawings, thereis an opening or doorway 1 in the partition or bulkhead 2 or in the smoke box plate which the door is to close, and this opening is reinforced at its edge by an angle piece or doorway frame having a rib 3 against which rests in its closed position the door plate 4, the said door platebeing hinged at one side by hinges 5 to the partition 2. Riveted tothe partition adjacentto thetwo sides of the opening 1, are brackets or cleats 6 having an upstanding flange or snug portion 7 spaced away from the, partition, and riveted to the side of themarginal frame 8 both at the hinge side and at the oppositefsideare horizontal arms 9 and 10 having at their outer'ends inclined orwedge portions 11 capable of engaging behindcounterpart inclined surfaces ofthe snugs 7 when the door is closedand the marginal frame 8 is slid downward, or of being disengaged therefrom, when the Specification of Letters Patent.

Patented Nov. 1, 1921.

1921. Serial No. 472,845.

marginal frame is slid upward. Riveted to the partition at the top of thebpening, are brackets or cleats 12 havinga lateral flange or snug portion 13 spaced away from the partition 2 and preferably reduced in width at the end, and riveted tothe top member of the marginal frame 8 are upstanding arms 14 having at their ends inclined or wedge portions capable of engaging behind the counter-part inclined surfaces of the said snug portions 13 when the door is closed and the marginal frame 8 is slid downward, or disengaged therefrom when the marginal frame 8 is slid upward.

In the case of smoke boxes and some other structures, brackets or cleats are riveted to the partition 2 at the bottom of the opening, and downturned arms are riveted tothe bot"- tom member of themarginal frame 8. These brackets and down-,turhedarms are similar or substantially similar to the brackets 12, and upturned arms 14,-and the said downturned arms have at their ends inclined or wedge portions capable of engaging behind the counter-part inclined surfaces of the snug portions of the brackets when the door is closed, and the marginal frame is slid downward.

Thus when the door is closed and the marginal frame is slid downward, the door is pressed at all the sides of its perimeter against therib 3 of the doorway opening in order to make a water, steam air or smoke tight joint. It will be understood that in this arrangement, the rib ,3 will extend all around the doorway.

In cases howeverwherethe invention is applied to an opening or way in a bulkhead, partition, or the like,through which pedestrians or wheeled traffic pass, and where it is desirable 'to avoid any upstanding projection in the floor at the sillof the doorway which would obstruct the traflic, then in such case as shown in Figs. 1 to 4: I aflix to thesteel deck 16 adjacent to the bulkhead two metallic angle members 17 spaced apart and the doorway frame 3 does not extend across the bottom of the doorway. These angle members 17.pass'transversely across the deck, one flange ofeachangle member 17 being laid upon and aflixed to the deck 16, while the other flange of each angle member projects upward from the deck the said flanges being spaced apart say aninch or thereabout so as to form a groove or channel between.

The upwardly projecting flange of one of the angle members 17 is located in the same vertical plane as the door 4;, and the doorway frame 3 is electrically welded at the base to the said flange so as to be integral therewith. The steel deck is covered with a covering of suitable composition 18 (such as the composition sold under the registered trademark Litosilo) to the same depth as the upstanding flanges of the angle members 17 so as to form a floor, an open-top channel 19 (flush with the floor) being upstanding flanges of the angle members 17 immediately adjacent to one face of the partition. The object is to provide in the floor a narrow recess 19 in which the door fastening means is adapted to engage, and yet avoid any upstanding projection at the sill over which anyone passing through the doorway in the bulkhead would be liable to trip.

The said angle members 17 may extend from about one side of a doorway in the bulkhead to the other side, or they may we tend beyond each side of the doorway. An advantage of the latter arrangement would be that any dirt accumulating in that part of the channel 19 adjacent to the doorway, could be swept therefrom into the part of the channel further removed from the doorway, so as to leave the part that is engaged by the fastening means, clear. If desired one angle member could be rolled to a speportion cial shape so that while the open top of the channel is narrow, the part below is larger to form a chamber in which the dirt can be swept so as to leave the part that is engaged by the fastening means, clear.

The fastening means at the bottom of the marginal frame 8 when this narrow recess 19 in the floor is provided, consists of a wedge 20 extendingacross the lower horizontal member of such marginal frame 8 and riveted thereto, so that'when the marginal frame is slid downward, the wedge 21 of the bar will enter the channel or, recess 19 in the floor when the door is closed, so that door is pressed against the rib 3 of the doorway opening and the wedge bar 20 against one side of the channel 19 to make a water, steam or gas tight joint.

The fastener of the door and the wedging action to make a water, steam or gas tight joint is effected by sliding the marginal frame 8 in one direction vertically, thus binding the jointing material 22 at the top and at the sides of the door against its complemental rib 3 while at the bottom of the door thewedgebar 20 makes a tight joint. The release of the wedging action and unfastening of the door plate are effected by sliding the marginal frame 8 in the other direction. This sliding movement is imparted to the marginal frame by means of a cam 23 secured to a spindle 24C journaled in the door thus left between the twov plate 4, the said cam 23 being confined between a supplementary cross member or bridge piece 25 made integral with the marginal frame, and an abutment or strap member 26 secured by arms to the said cross member. By turning one or other of the handles 27 at either side of the door, the cam 23 will impart to the said frame 8 a sliding movement in one direction to fasten the door or in the other direction to unfasten it. The cam 23 is housed by covering plates bolted to the strap member at 29. The plate 30 forms a reinforcement for thebridge piece, and constitutes a bearing surface for the cam.

When the door is'closed by turning'it upon its hinges 5, the jointing material 22 at the sides and top of .the door impacts against the complemental rib 3 of the doorway opening, and then by sliding the marginal frame, so that the ends of the brackets engage behind the counterpart inclined surfaces of the said snug portions, the door or rather its packing material 22 is tightened against the rib, so as to produce a very secure water tight joint. In order to enable the rear face of the door to be tightened against its seating 3, the hole in the hinges 5 through which the hinge pins pass, is made oval so as to permit of the necessary closing pressure to be exerted, by means of the brackets engaging behind the counterpart inclined surfaces of the snugs. These oval holes allow of the door moving a short distance toward the rib 3 after being swung 100 into the closed position, in order to make the packing material 22 bear equally at all points against the rib to insure a perfect joint. At all the four sides of the perimeter of the door plate, a very secure joint is produced by the action of the fastening means, which takes into the beveled snugs 7 and 13, and into the channel or recess 19 in the floor so as to bind the jointing material 22 at top and bottom of the door and at the sides of the door against its complemental ribs.

Consequently the ribs 3 bear equally at all points on the jointing material and insure a perfect joint.

In the arrangement shown in Fig. 1, the flange or rib 3 at the opening or doorway in the partition or bulkhead, extends down the two sides of the opening and across the top thereof, but at the bottom of thejopening the angle member which carries this rib 3 is omitted so as to avoid any upstanding projection inthe floor at the sill of the doorway. In Fig. .5 this angle member or doorway frame which carries the rib 3 is continued not only down both sides of the opening or doorway and across the top, but across the bottom of the opening as well, so that it forms an upstanding projection at the sill though the fastening at the sill is below the deck surface. In this arrangement, 17 are the two metallic angle members passing transversely across the steel deck 16, but these members are spaced rather further apart than in the arrangement shown in the preceding figures, and 3 is the angle member or doorway frame which reinforces the opening in the bulkhead 2, not only down the two sides of the opening and at the top, but also along the bottom thereof at the sill. The bulkhead 2 with its reinforcing doorway frame 3 is secured at the sill to one of the deck angle members 17 ,and riveted to the doorway frame 3 are channel cleats 33 which keep the deck angle members 17 spaced apart. 18 is the Litosilo covering for the deck, 34 the downcomer wedge bars or strips riveted to the lower horizontal member of the marginal frame 8 so that when the marginal frame isslid downward, the wedge bars 34 will enter the channel cleats 33, and so press the door against the rib 3. The bulkhead 2 below the opening 1 and the lower part of the doorway frame 3 forms a coaming at the sill. In other respects the construction is similar or substantially similar to that shown in Figs. 1 to 4-,and like reference numerals refer to corresponding parts.

I declare that what I claim is 1. The combination of a partition having a doorway formed therein; a floor substantially flush with the lower margin of said doorway, said floor having a slot extending below its surface and across said doorway; a door hinged to said partition and adapted in its closed position to overlap the margins of said doorway; and a locking structure comprising two interengaging sets of wedginglocking elements one set being movable to produce engagement and disengagement,

and including a wedging bar which in the engaged position lies on said slot and overlaps the adjacent edge of said door.

2. The combination of a partition having a doorway formed therein; a floor flush with the lower margin of said doorway, said floor having a slot extending below its surface and across said doorway; a door hinged to said partition and adapted in its closed position to overlap the margins of said doorway except at the floor; and a locking structure comprising two interengaging sets of wedging locking elements, one set being movable to produce engagement and disengagement, and including a wedging bar which in the engaged position lies in said slot and overlaps the adjacent edge of said door.

3. The combination of a partition having a doorway; a floor flush with the lower margin of said doorway, a reinforcing frame constructed of angle iron and extending around the top and two sides of said doorway, one of the flanges of said angle iron forming a projecting rib; a grooved sill flush with said floor; a door hinged to said partition and adapted to seat against said rib; keepers on said partition; and a locking frame slidably mounted on said door and provided with looking members for engagmg said keepers and a locking wedge bar for simultaneously engaging the slot in said sill.

In witness whereof, I have hereunto signed my name this 4th day of May, 1921, in the presence of two subscribing witnesses.

ORSINI STUART. Witnesses JAS. C. MoKAE, J. MCLAOHLAN. 

